Table 3 Patients’ characteristics and clinical outcomes when CE was defined as ≥ 3 PCs in 10 HPFs

Age (y), Median, IQR

36 (33–37)

38 (37–39)

0.0051

Gravidity, Median, IQR

0 (0–0)

0.5 (0–2)

0.04

Parity, Median, IQR

0 (0–0)

0.5 (0–1)

0.0006

BMI (kg/m²), Median, IQR

21.9 (19.6–24.5)

20.9 (19.9–24.1)

0.54

Smoking habit (%)

0

0

1

FSH (mIU/mL), Median, IQR

8.6 (6.7–9.7)

9.05 (7.83–10.4)

0.18

Previous OPU cycles, Median IQR

1 (1–4)

1.5 (1–3.3)

0.93

EM thickness (mm), Mean ± SD

10.5 ± 2.0

10.0 ± 2.0

0.39

Rate of good blastocysts (%)

64.1 (25/39)

57.1 (8/14)

0.75

Infertility cause

 Tubal factor

10

5

0.50

 Ovarian factor

6

2

1

 Endometriosis

9

4

0.73

 ASA

0

0

1

 Fertilization failure

1

1

0.4

 Male factor

11

2

0.47

 Unexplained fertility

11

3

0.74

Pregnancy rate (%)

53.9 (21/39)

28.6 (4/14)

0.13

Live birth rate (%)

38.5 (15/39)

7.1 (1/14)

0.041

Miscarriage rate (%)

28.6 (6/21)

75 (3/4)

0.12